Spiti (pronounced as Piti in Bhoti language) is a high-altitude region of the Himalayas, located in the north-eastern part of the northern Indian state of Himachal Pradesh. The name "Spiti" means "The middle land" , i.e. the land between Tibet and India. Spiti incorporates mainly the valley of the Spiti River, and the valleys of several rivers that feed into the Spiti River. Some of the prominent side-valleys in Spiti are the Pin valley and the Lingti valley. Spiti is bordered on the east by Tibet, on the north by Ladakh, on the west and southwest by Lahaul, on the south by Kullu, and on the southeast by Kinnaur. Spiti has a cold desert environment. The valley and its surrounding regions are among the least populated regions of India. The Bhoti-speaking local population follows Tibetan Buddhism.